How do you factor x^5(x+9) + 3(x+9)

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

What is the slope of the line that contains the points (-2,1) and (0,-3)